$ git clone -n https://src.fedoraproject.org/rpms/gnutls.git /var/lib/mock/f29-build-4455-1046/root/thebuilddir/tmp/scmroot/gnutls
Cloning into '/var/lib/mock/f29-build-4455-1046/root/thebuilddir/tmp/scmroot/gnutls'...
$ git reset --hard 8e77a600bec98da1ae0524bad220e6375910a751
HEAD is now at 8e77a60 Update to 3.6.2-1